Synthesis and X-ray crystal structure determination of the cationic gold cluster compound [Au8(PPh3)7](NO3)2

Phosphine-Coordinated Pure-Gold Clusters: Diverse Geometrical Structures and Unique Optical Properties/Responses

“…Later, in 1970s and early 1980s, definitive X-ray structure determinations were achieved independently mainly by a Nijmegen group [20][21][22][23][24][25][26][27][28][29][30][31][32][33] and Mingos et al [34][35][36][37][38][39][40][41][42][43] for various PGCs with nuclearity of 5 -13 [44][45][46][47][48][49]. Most of these clusters exploited monodentate phosphines as the ligands, revealing the general trend of the geometrical preference in the formation of ultrasmall clusters under unconstrained conditions.…”

On the application potential of gold nanoparticles in nanoelectronics and biomedicine

“…Thus, this example represents an interesting approach towards chemically triggered switching. A similar approach was recently reported by van der Molen et al (2009). Twodimensional lattices of 10 nm octanethiolate-protected AuNPs were produced in the same manner as described earlier, followed by a ligand exchange reaction to replace the octanethiol ligand versus rigid bifunctional dithiolated photochromic diarylethene molecules, thus leading to interconnection of the nanoparticles within the array (figure 25).…”

Ionically Cross‐Linked Gold Clusters and Gold Nanoparticles

“…[Au 6 (PPh 3 ) 4 ][Co(CO) 4 ] 2 , [5] [Au 8 (PPh 3 ) 8 -(NO 3 ) 2 , [5] [Au 8 (PPh 3 ) 7 ](NO 3 ) 2 , [6] [Au 9 {P(C 6 H 4 -pMe) 3 } 8 ]-(PF 6 ) 3 , [7,8] and [Au 10 Cl 3 ](PCy 2 Ph) 6 NO 3 (Cy = cyclohexyl). [9] An almost continuous series of gold clusters was, for the time being, completed with the full-shell cluster [Au 13 (dppm) 6 ]-(NO 3 ) 2 [10] (dppm = Ph 2 PCH 2 PPh 2 ), although the discoveries did not happen in a chronological order.…”

“…[9] An almost continuous series of gold clusters was, for the time being, completed with the full-shell cluster [Au 13 (dppm) 6 ]-(NO 3 ) 2 [10] (dppm = Ph 2 PCH 2 PPh 2 ), although the discoveries did not happen in a chronological order. Apart from some minor details, these cluster compounds structurally document the stepwise development up to the perfect icosahedral Au 13 cluster.…”